CN105695033A - Preparation method of sludge biomass fuels - Google Patents
Preparation method of sludge biomass fuels Download PDFInfo
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- CN105695033A CN105695033A CN201610221701.7A CN201610221701A CN105695033A CN 105695033 A CN105695033 A CN 105695033A CN 201610221701 A CN201610221701 A CN 201610221701A CN 105695033 A CN105695033 A CN 105695033A
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- sludge
- mud
- biomass
- fermentation
- stirring
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
- C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
Abstract
The invention relates to a method for comprehensively utilizing sludge generated in sewage treatment, in particular to a preparation method of sludge biomass fuels. The preparation method includes the following steps: adding quick lime in sludge and stirring; then adding a second batch of sludge, stirring evenly, using the sludge as low-layer sludge and adding a biomass fermentation material; finally, adding a third batch of sludge, a biomass fermentation material and a sludge leavening agent, and planting fast plants on the fermented upper-layer sludge; stirring the planted plants and the sludge together and adding a biomass fermentation material; fermenting to obtain a fermentation sludge biomass mixture; and then adding coking coal powder and quick lime to obtain biofuel blocks. By the preparation method of the sludge biomass fuels, the amount of added auxiliaries is small, the cost is low, the effect of the sludge containing microorganisms is utilized fully, the sludge and biomass are repeatedly fermented, vegetation is planted, the content of combustible matters is increased, meanwhile, the sludge can be degraded and the water of the sludge is reduced, and the prepared sludge biomass fuels have good combustion ratio.
Description
Technical field
The present invention relates to the comprehensive utilization of mud method produced in sewage disposal, the specifically manufacture method of sewage sludge biomass fuel。
Background technology
The method preparing fuel with municipal sludge, although possess some special knowledge now, but processing cost is higher。First it is embodied in sludge dewatering cost, although through the filter press technique of Sewage Plant or carry out dehydration with folded spiral shell machine, but the moisture percentage in sewage sludge dispatched from the factory is general all more than 80%。Reduce moisture content, more flocculant certainly will be added and extend time of filter pressing, causing high cost。In addition to meet burning needs, the fuel requirement that mud is made is dried, and this is main or mud is dried, and drying sludge difficulty is big, owing to easily hardening in mud top layer, internal moisture is caused to be difficult to shed, natural air drying is infeasible, dries the energy consumed too big。Last existing mud is prepared in fuel, and the auxiliary agent of interpolation is also a lot, has raised production cost further。
Summary of the invention
For above-mentioned technical problem, the present invention provides a kind of cost effective method utilizing mud to prepare fuel。
Concrete technical scheme is:
The manufacture method of sewage sludge biomass fuel, including procedure below:
(1) water content be 80～90% mud put into fermentation vat inner bottom part, add quick lime stirring, conditioning of mud acid-base value is to neutral；Mud and quick lime weight ratio are 100: 12～15, it is preferable that weight ratio is 100: 13；
(2) time the mud temperature after adding quick lime is down to 50～60 DEG C, add second batch mud again to stir in fermentation vat, the quality of second batch mud is identical with sludge quality in step (1), mud after stirring, as low layer mud, is additionally added biomass ferment material in low layer mud；Low layer mud and biomass ferment material mass ratio are 100: 50～60, it is preferable that mass ratio is 100: 55；
(3) finally adding the 3rd batch of mud is upper strata mud, and the 3rd batch of mud is second batch mud weight ratio is 1.2: 1；Upper strata mud adds biomass ferment material and sludge fermentation agent, is laid on low layer mud after stirring, carries out fermentation process according to the operation instruction of sludge fermentation agent；
The biomass ferment material added in this step is add 0.8～1 times of biomass ferment material in step (2)。
(3) the upper strata sludge seeding rank vegetation after fermentation；
(4), time rank vegetation rate of growth starts to reduce, the plant planted is stirred together with upper strata mud, low layer mud；Whipping process adds biomass ferment material；
The biomass ferment material added in this step is add 1～1.5 times of biomass ferment material in step (2)。
(5) stirring after mixed mixture banks up 1～2 day, to upper strata sludge aeration 8～10 hours, heap stood 3 days again, ventilates once every 12 hours stirrings, obtains fermented sludge biomass mixture；
(6) fermented sludge biomass mixture adds coking coal powder, quick lime stirring mixing, makes bio-fuel block。The quick lime, coking coal powder and the fermented sludge biomass mixture mass ratio that add in this step are 1: 50～80: 140～200。
Quick lime, coking coal powder addition determine according to the moisture content of fermented sludge biomass mixture and carbon content test result。
The biomass ferment material added in above procedure, is prepared gained by following methods, by dewatered sludge, biomass material, cinder according to after mass ratio 1: 2: 1 proportioning mix homogeneously, carries out anaerobic fermentation, and fermentation temperature is 30-50 DEG C, fermentation time 10-12 days；Described dewatered sludge moisture content is 30～50%。
Described biomass material is, trees and fell industrial wood waste, the resources such as forestry processing waste such as wood shavings, wood flour, wood fragments, the waste residue etc. in the straw of crops, grass class, shell class and agricultural byproducts processing process。
The manufacture method of sewage sludge biomass fuel provided by the invention, quick lime was utilized to react with part water in mud before this, remove portion of water, quick lime reaction simultaneously produces a large amount of bubbles, prevent mud from hardening, the mud making low layer can form loose material layer, after low layer mud adds biomass ferment material, carry out incomplete anaerobic fermentation, and upper strata mud, add biomass ferment material and sludge fermentation agent, carry out aerobic fermentation, mud after aerobic fermentation, it is more beneficial for the production of the rank vegetation, the grass seeds choosing such as fast-growing is sowed, Planting Fast-growing plant, namely can by part moisture removal in mud, plant can also be utilized to improve the amount of biomass in mud simultaneously；Finally by mud fermented sludge biomass mixture together with the rank vegetation, the rank vegetation and biomass ferment material can be changed into inflammable composition by fermentation；Being eventually adding calcium oxide, play oxidizing biomass composition, it is easy to burning, also for reducing moisture simultaneously, its gas additionally produced after calcium oxide reaction so that producing pore in the fuel slug made, can improve combustion efficiency。In this process, utilize mud, in advance biomass are carried out fermentation process, be in order to follow-up addition mud can accelerate sludge fermentation process。
The manufacture method of sewage sludge biomass fuel provided by the invention, add auxiliary agent few, cost is low, make full use of the mud effect containing microorganism itself, carry out repeatedly fermentation process together with biomass, plant vegetation, improve combustible content, mud self can also be played certain degraded simultaneously, reduce the effect of moisture, prepared sewage sludge biomass fuel, there is good combustion rate。
Detailed description of the invention
It is described in conjunction with the embodiments the specific embodiment of the present invention。
Embodiment 1
First biomass ferment material is prepared: by dewatered sludge, biomass material, cinder according to, after mass ratio 1: 2: 1 proportioning mix homogeneously, putting into and carry out anaerobic fermentation in anaerobic pond, fermentation temperature is 30-50 DEG C, fermentation time 10-12 days；Utilizing pressure filter is 30% by sludge dewatering to moisture content。
The manufacture method of sewage sludge biomass fuel, including procedure below:
(1) measuring sludge moisture content is about 90%, and mud puts into fermentation vat inner bottom part, adds quick lime stirring, adds hydrochloric acid solution conditioning of mud acid-base value to neutral；Mud and quick lime weight ratio are 100: 15；
(2) time the mud temperature after adding quick lime is down to 50～60 DEG C, add second batch mud again to stir in fermentation vat, the quality of second batch mud is identical with sludge quality in step (1), mud after stirring, as low layer mud, is additionally added biomass ferment material in low layer mud；Low layer mud and biomass ferment material mass ratio are 100: 60；
(3) finally adding the 3rd batch of mud is upper strata mud, and the 3rd batch of mud is second batch mud weight ratio is 1.2: 1；Upper strata mud adds biomass ferment material and sludge fermentation agent, is laid on low layer mud after stirring, carries out fermentation process according to the operation instruction of sludge fermentation agent；The biomass ferment material added in step (3) is add 1 times of biomass ferment material in step (2)。Sludge fermentation agent is commercially available sludge fermentation agent。The ferment-fermented time that the present embodiment is chosen is 5～7 days。
(3) the upper strata sludge seeding rank vegetation after fermentation；The rank vegetation that the present embodiment is chosen is multiple fast-growing herbage。
(4), time rank vegetation rate of growth starts to reduce, the plant planted is stirred together with upper strata mud, low layer mud；Whipping process adds biomass ferment material；
The biomass ferment material added in this step is add 1.5 times of biomass ferment material in step (2)。
(5) stirring after mixed mixture banks up 1 day, to upper strata sludge aeration 8 hours, heap stood 3 days again, ventilates once every 12 hours stirrings, obtains fermented sludge biomass mixture；
(6) fermented sludge biomass mixture adds coking coal powder, quick lime stirring mixing, makes bio-fuel block。According to assay, the quick lime added in this step, coking coal powder and fermented sludge biomass mixture mass ratio are 1: 70: 200。
Embodiment 2
First biomass ferment material is prepared: by dewatered sludge, biomass material, cinder according to, after mass ratio 1: 2: 1 proportioning mix homogeneously, putting into and carry out anaerobic fermentation in anaerobic pond, fermentation temperature is 30-50 DEG C, fermentation time 10-12 days；Utilizing pressure filter is 50% by sludge dewatering to moisture content。
The manufacture method of sewage sludge biomass fuel, including procedure below:
(1) measuring sludge moisture content is about 85%, and mud puts into fermentation vat inner bottom part, adds quick lime stirring, adds hydrochloric acid solution conditioning of mud acid-base value to neutral；Mud and quick lime weight ratio are 100: 13；
(2) time the mud temperature after adding quick lime is down to 50～60 DEG C, add second batch mud again to stir in fermentation vat, the quality of second batch mud is identical with sludge quality in step (1), mud after stirring, as low layer mud, is additionally added biomass ferment material in low layer mud；Low layer mud and biomass ferment material mass ratio are 100: 50；
(3) finally adding the 3rd batch of mud is upper strata mud, and the 3rd batch of mud is second batch mud weight ratio is 1.2: 1；Upper strata mud adds biomass ferment material and sludge fermentation agent, is laid on low layer mud after stirring, carries out fermentation process according to the operation instruction of sludge fermentation agent；The biomass ferment material added in step (3) is add 1 times of biomass ferment material in step (2)。Sludge fermentation agent is commercially available sludge fermentation agent。The ferment-fermented time that the present embodiment is chosen is 5～7 days。
(3) the upper strata sludge seeding rank vegetation after fermentation；The rank vegetation that the present embodiment is chosen is multiple fast-growing herbage。
(4), time rank vegetation rate of growth starts to reduce, the plant planted is stirred together with upper strata mud, low layer mud；Whipping process adds biomass ferment material；
The biomass ferment material added in this step is add 1.5 times of biomass ferment material in step (2)。
(5) stirring after mixed mixture banks up 2 days, to upper strata sludge aeration 10 hours, heap stood 3 days again, ventilates once every 12 hours stirrings, obtains fermented sludge biomass mixture；
(6) fermented sludge biomass mixture adds coking coal powder, quick lime stirring mixing, makes bio-fuel block。According to assay, the quick lime added in this step, coking coal powder and fermented sludge biomass mixture mass ratio are 1: 50: 140。
Embodiment 3
First biomass ferment material is prepared: by dewatered sludge, biomass material, cinder according to, after mass ratio 1: 2: 1 proportioning mix homogeneously, putting into and carry out anaerobic fermentation in anaerobic pond, fermentation temperature is 30-50 DEG C, fermentation time 10-12 days；Utilizing pressure filter is 40% by sludge dewatering to moisture content。
The manufacture method of sewage sludge biomass fuel, including procedure below:
(1) measuring sludge moisture content is about 80%, and mud puts into fermentation vat inner bottom part, adds quick lime stirring, adds hydrochloric acid solution conditioning of mud acid-base value to neutral；Mud and quick lime weight ratio are 100: 12；
(2) time the mud temperature after adding quick lime is down to 50～60 DEG C, add second batch mud again to stir in fermentation vat, the quality of second batch mud is identical with sludge quality in step (1), mud after stirring, as low layer mud, is additionally added biomass ferment material in low layer mud；Low layer mud and biomass ferment material mass ratio are 100: 55；
(3) finally adding the 3rd batch of mud is upper strata mud, and the 3rd batch of mud is second batch mud weight ratio is 1.2: 1；Upper strata mud adds biomass ferment material and sludge fermentation agent, is laid on low layer mud after stirring, carries out fermentation process according to the operation instruction of sludge fermentation agent；The biomass ferment material added in step (3) is add 1 times of biomass ferment material in step (2)。Sludge fermentation agent is commercially available sludge fermentation agent。The ferment-fermented time that the present embodiment is chosen is 5～7 days。
(3) the upper strata sludge seeding rank vegetation after fermentation；The rank vegetation that the present embodiment is chosen is multiple fast-growing herbage。
(4), time rank vegetation rate of growth starts to reduce, the plant planted is stirred together with upper strata mud, low layer mud；Whipping process adds biomass ferment material；
The biomass ferment material added in this step is add 1.5 times of biomass ferment material in step (2)。
(5) stirring after mixed mixture banks up 2 days, to upper strata sludge aeration 8 hours, heap stood 3 days again, ventilates once every 12 hours stirrings, obtains fermented sludge biomass mixture；
(6) fermented sludge biomass mixture adds coking coal powder, quick lime stirring mixing, makes bio-fuel block。According to assay, the quick lime added in this step, coking coal powder and fermented sludge biomass mixture mass ratio are 1: 80: 150。
Claims (5)
1. the manufacture method of sewage sludge biomass fuel, it is characterised in that comprise the following steps:
1) water content be 80～90% mud put into fermentation vat inner bottom part, add quick lime stirring, conditioning of mud acid-base value is to neutral；Mud and quick lime weight ratio are 100: 12～15, it is preferable that weight ratio is 100: 13。
2) time the mud temperature after adding quick lime is down to 50～60 DEG C, add second batch mud again to stir in fermentation vat, the quality of second batch mud is identical with sludge quality in step (1), mud after stirring, as low layer mud, is additionally added the biomass ferment material that the present inventor obtains through long-term experiment in low layer mud；Low layer mud and biomass ferment material mass ratio are 100: 50～60, it is preferable that mass ratio is 100: 55。
3) finally adding the 3rd batch of mud is upper strata mud, and the 3rd batch of mud is second batch mud weight ratio is 1.2: 1；Upper strata mud adds biomass ferment material and sludge fermentation agent, is laid on low layer mud after stirring, carries out fermentation process according to the operation instruction of sludge fermentation agent。
4) the upper strata sludge seeding rank vegetation after fermentation。
5), time rank vegetation rate of growth starts to reduce, the plant planted is stirred together with upper strata mud, low layer mud；Whipping process adds biomass ferment material。
6) stirring after mixed mixture banks up 1～2 day, to upper strata sludge aeration 8～10 hours, heap stood 3 days again, ventilates once every 12 hours stirrings, obtains fermented sludge biomass mixture。
7) fermented sludge biomass mixture adds coking coal powder, quick lime stirring mixing, makes bio-fuel block。
2. the manufacture method of sewage sludge biomass fuel according to claim 1, it is characterised in that the biomass ferment material added in described step (3) is add 0.8～1 times of biomass ferment material in step (2)。
3. the manufacture method of sewage sludge biomass fuel according to claim 1, it is characterised in that the biomass ferment material added in described step (4) is add 1～1.5 times of biomass ferment material in step (2)。
4. the manufacture method of sewage sludge biomass fuel according to claim 1, it is characterised in that the quick lime, coking coal powder and the fermented sludge biomass mixture mass ratio that add in described step (6) are 1: 50～80: 140～200。
5. the manufacture method of the sewage sludge biomass fuel according to any one of claim 1 to 4, it is characterized in that, described biomass ferment material, gained is prepared by following methods, by dewatered sludge, biomass material, cinder according to after mass ratio 1: 2: 1 proportioning mix homogeneously, carrying out anaerobic fermentation, fermentation temperature is 30-50 DEG C, fermentation time 10-12 days；Described dewatered sludge moisture content is 30～50%。Wherein, described biomass material is, trees and fell industrial wood waste, the resources such as forestry processing waste such as wood shavings, wood flour, wood fragments, the waste residue etc. in the straw of crops, grass class, shell class and agricultural byproducts processing process。
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| CN201610221701.7A CN105695033B (en) | 2016-04-12 | 2016-04-12 | The manufacturing method of sewage sludge biomass fuel |
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| CN201610221701.7A CN105695033B (en) | 2016-04-12 | 2016-04-12 | The manufacturing method of sewage sludge biomass fuel |
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| CN105695033B CN105695033B (en) | 2019-04-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147920A (en) * | 2016-08-25 | 2016-11-23 | 仇颖超 | A kind of preparation method of composite biomass fuel |
| CN110055789A (en) * | 2018-01-18 | 2019-07-26 | 东莞市泰昌纸业有限公司 | Use the method for cinder and waste paper production brown paper |
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| CN105296049A (en) * | 2015-11-04 | 2016-02-03 | 梅庆波 | Preparation method of sludge biomass fuel |
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| JP2008201860A (en) * | 2007-02-19 | 2008-09-04 | Kazuhiro Okumura | Method for recycling and recovering food waste, sludge and waste fluid |
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